One of my concerns is that it gives the upper hand to large organization with the resources (including perhaps labor costs fixed to a certain degree by virtue of staff attorneys; also, filing fees) to file early and often.

Further entrenchment of IP as the purview of those who can afford it.

I'm glad to be proven wrong -- I'm not well-informed on this. But I fear it, both from my own limited thought exercise, and out of concern for the types of legal changes that are able to make it through the Federal process, these days, generally speaking.