-Support
I am gonna state a few reasons.
first, what Panda said. Its more fun to have many 610 instances running around,
and killing, then having 2 being killed by 40 MTF.
Next, most people dont really have a big problem with this. The maximum time I have seen a 610 breach
is around 10-15 minutes.
Last, there are many strats that would just be ruined by doing that. Like the Wardens Firing Line at 173 CC.
Many more too.