❗ Freedom by force isn't really freedom but this is more of a pragmatic reason

If people can take this codebase and close it down for others to use later
then those people will be subject to non-free software. Worse future projects
may opt to change the LICENSING which restricts users from doing anything with
the source code. On the one hand creators will have slightly less freedom to
do as they please, on the other hand, users(the greater sized population) will
have more transparency. Transparency is the real reason for the license change.