I took my linked solution and placed the hyperlinks around \@savenumber instead of \@savetitle.
Since there was no mention of cross-linking sections and TOC entries, I removed that part of the solution.
\documentclass[11pt]{article}
\usepackage[margin=0.5in,footskip=0.4in]{geometry}
\usepackage[T1]{fontenc}
\usepackage{etoolbox}
\usepackage{hyperref}
\hypersetup{
colorlinks=true,
linkcolor=blue,
linktoc=all,
}
%\let\hypercontentsline=\contentsline
%\renewcommand{\contentsline}[4]{\hypertarget{toc.#4}{}\hypercontentsline{#1}{#2}{#3}{#4}}
% begin code to remove section titles from the TOC
\makeatletter
\newcommand{\@savenumber}{}% reserve global names
\newcommand{\@gettitle}[1]% remove \numberline from title
{\bgroup\let\numberline=\@gobble#1\egroup}
\def\contentsline#1#2#3#4{% #1=type, #2=entry, #3=page, #4=anchor
%\hypertarget{toc.#4}{}% set up backlink
\bgroup% separate \numberline from title
\renewcommand{\numberline}[1]{\gdef\@savenumber{##1}}%
\sbox0{#2}% throw away title, keep number
\egroup
\begingroup
\Hy@safe@activestrue
\edef\x{\endgroup
\def\noexpand\Hy@tocdestname{#4}%
}\x
\ifx\Hy@tocdestname\ltx@empty
\csname l@#1\endcsname{#2}{#3}%
\else
\ifcase\Hy@linktoc % none
\csname l@#1\endcsname{#2}{#3}%
\or % section
\csname l@#1\endcsname{\numberline{\hyper@linkstart{link}{\Hy@tocdestname}\@savenumber\hyper@linkend}%
{\@gettitle{#2}}}{#3}%
\or % page
\def\Hy@temp{#3}%
\ifx\Hy@temp\ltx@empty
\csname l@#1\endcsname{#2}{#3}%
\else
\csname l@#1\endcsname{{#2}}{%
\hyper@linkstart{link}{\Hy@tocdestname}{#3}\hyper@linkend
}%
\fi
\else % all
\def\Hy@temp{#3}%
\ifx\Hy@temp\ltx@empty
\csname l@#1\endcsname{\numberline{\hyper@linkstart{link}{\Hy@tocdestname}\@savenumber\hyper@linkend}%
{\@gettitle{#2}}
\egroup}{}%
\else
\csname l@#1\endcsname{\numberline{\hyper@linkstart{link}{\Hy@tocdestname}\@savenumber\hyper@linkend}%
{\@gettitle{#2}}
}{%
\hyper@linkstart{link}{\Hy@tocdestname}{#3}\hyper@linkend
}%
\fi
\fi
\fi
}
\makeatother
% Body
\begin{document}
\title{This is a Title}
\date{}
\maketitle
\tableofcontents
\section{A Section}
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
\section{Another One}
\subsection{Hello}
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
\subsection{Goodbye}
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
\section{Final Section}
Peace out.
\end{document}