I wouldn't say that. I don't know if you remember, but before the change of status in the wta calendar, there were some Tier IV-tournaments and for me these one are actually kind of revivals of these one. I think it's a good think, it's a chance for newcomers like Svitolina or Mladenovic to make some points and get ready for the WTA tour. There are a lots of differences between WTA and ITF just only in the rules and regulations.
I checked and only three times in the year you can find three WTA tournament the same week. These one will allow players as high (low) as 250-300 to get in the qualies and for these players it is really important to be sure, they can get in the tournament before they buy their flight ticket.
Personnaly I like these "150's" and I'm sure in about 2 years there will be something like 12-15 in the calendar
That's a good change