Today is one year, seven months, three weeks, five days and ten hours when she said I am too resentful
Now D&D could be the potentially most important brand by Hasbro, and if there is a economic crisis this year, D&D could be key to save the company.
Maybe I have read too many conspirancy theories but some times I suspect there is some group who doesn't want Hasbro to become too important but if this is enoughly controlled, and not only for the money, but the strategic value within the "soft power". Maybe really that was not idea by the sharks among the CEOs chairs, but they were compeled to do it. They knew it was a a bad idea, but they couldn't said, it had to be showed, proved.
If the planned strategy of D&D as a multimedia franchise worked, this means the TTRPG wouldn't be the main income source. Then they shouldn't worry about the money earnt by the 3PPs because they would be making more money with the new movies, toys, videogames, comics..
The 3PPs aren't the true rivals of WotC. These publish new things, and this help to fill "hollow spaces" where WotC's team can't.
WotC could learn to work like a videogame or movie distributor. There are several 3PPs with fabulous ideas, but they can fall into the oblivion some time after the crowdfunding. Their work could be interesting, but they aren't known by the enough number of players. Maybe WotC shold create something like a DMGuild spin-off for 3PPs. In exchange for a percentage (equivalent to advertising expenses) they would enjoy the best showcase. Maybe the 3PPs would only need to publish an intro, or their best part of crunch.
* Maybe it is a crazy idea, but WotC could create virtual "figures/skins/models" to be used by AI-Art creators. For example with your premium account within D&D-Beyond you could use AI-Art creator to create portraits of your PCs, or epic scenes with your favorites characters, the heroes of Dragonlance, or the iconic classes from 3.5.