I really don't think INART much cares about Hot Toys, just the same way I don't think HT really care the same way people think they are fearing INART. Hot Toys has the casual market that has seeped into high-end collectibles, and they do a fine job.
INART is the answer to the question of can there be better? And it's the hardcore collectors who will jump ship and pay more money to get better. Anyone who thinks Hot Toys is doomed or sweating because of INART are incredibly wrong. HT has the stranglehold on the market and the market that will be the biggest for a long time.
It's nice that HT's are being a bit more transparent, but I doubt they're fearful. It's weird seeing people really jump on one or the other. HT is fine for what it is. You don't have to disparage one to feel comfortable in making your choices.
Anyway, we all know JND is best.