Reword the PyPI limits rationale, based on feedback

peps/pep-0759.rst

@@ -124,19 +124,15 @@ packages.
 Addressing PyPI limits
 ----------------------
 
-The problem *this* PEP solves is not just reduction or elimination of
-dependency confusion attacks. There is another class of problem that a safe
-external wheel hosting solution can mitigate: artifact size limits.
-
-PyPI imposes a `default artifact size limit <https://pypi.org/help/#file-size-limit>`__ of
-100 MiB and a default overall `project size limit
-<https://pypi.org/help/#project-size-limit>`__ of 10 GiB. Most packages and artifacts can
-easily fit in these limits, even for packages containing binary extension modules for a
-variety of platforms. A small, but important class of packages routinely exceed these
-limits, requiring them to submit PyPI support tickets `requesting higher limits`_. It's not
-necessarily difficult to get resolution on such exceptions, but it is a special process
-that can take some time to resolve, and the criteria for granting such exceptions aren't
-well documented.
+This proposal also addresses the problem of size limits imposed by PyPI, where there is a
+`default artifact size limit <https://pypi.org/help/#file-size-limit>`__ of 100 MiB and a
+default overall `project size limit <https://pypi.org/help/#project-size-limit>`__ of 10
+GiB. Most packages and artifacts can easily fit in these limits, even for packages
+containing binary extension modules for a variety of platforms. A small, but important
+class of packages routinely exceed these limits, requiring them to submit PyPI `exception
+request support tickets`_. It's not necessarily difficult to get resolution on such
+exceptions, but it is a special process that can take some time to resolve, and the
+criteria for granting such exceptions aren't well documented.
 
 Reducing operational complexity
 -------------------------------
@@ -459,7 +455,7 @@ Copyright
 This document is placed in the public domain or under the
 CC0-1.0-Universal license, whichever is more permissive.
 
-.. _`requesting higher limits`: https://github.com/pypi/support/issues?q=is%3Aissue+is%3Aclosed+file+limit+request
+.. _`exception request support tickets`: https://github.com/pypi/support/issues?q=is%3Aissue+is%3Aclosed+file+limit+request
 .. _`wheel file naming format`: https://packaging.python.org/en/latest/specifications/binary-distribution-format/#file-format
 .. _`allowed`: https://packaging.python.org/en/latest/specifications/binary-distribution-format/#the-dist-info-directory
 .. _`signed wheel file format`: https://packaging.python.org/en/latest/specifications/binary-distribution-format/#signed-wheel-files