I don't know about these specific figures, but in general terms, it has
been shown again and again, all over the world, that NovusOrdo
bishops do not provide Indultery Masses for the purpose of serving the
Faithful with the sacraments, but rather for the purpose of drawing
away the Faithful from independent chapels, or SSPX chapels, or any
other CTLM venue.  There are numerous examples.  

Usually, the Novordiens are careful not to admit their intentions in
public, because then the truth will be embarassing, and if it "gets out"
then their deception will suffer.  So to propagate their deception, they
work in the dark, like the cockroaches they are.  

There have been times when their intentions have "slipped out"
though, and it is these times that the truth would be known.  Plus, it all
adds up.

When you attend any Indultery Mass, you do not hear any sermons
that are critical of religious liberty, Vat.II, the Newmass, ecuмenism,
Sodomites or pederasty among the clergy, or any of the other errors
that are found in the post-Conciliar menagerie.

So it is obvious that since this is the trend that the bishops are wont to
promote, it makes perfect sense that they would want to draw the
Faithful away from other chapels where they will hear this stuff.  

Thus the continuity in the method and the message.  In this context,
100, 200 or 300 does not sound like unreasonable numbers.  They
might be a bit inflated, but they are not unbelievable.