Shouldn't it be that they're making Switch exclusive, rather than they're making more? Since they haven't got any Switch exclusive games planned thus far that I'm aware of.
Anyway, unsurprising news given how they supported Vita. I'm fully expecting them to continue what they started on that console which is multi-plat musou; any experiments they do like bringing back Deception or making Toukiden, plus all of Gust's stuff. Just makes too much sense considering all the extra sales they picked up from it in the past.