If people are saying ports don't matter because they don't sell well .... well that was proven wrong as soon as Mario Kart 8 Deluxe released ... almost a year ago, so your comment is irrelevant then.
You must have missed the thread where people were saying Switch was going to lose momentum this Spring/Summer because of the high amount of ports/remasters.
Isn't that actually arguable though, seeing as how the games being ported are way more niche than Mario Kart 8 Deluxe?
I don't like this idea of Switch "losing" momentum or "falling off a cliff" because it's so non-specific and contextual, anyways. Contrary to others I think the Switch's baseline is probably more like 45k than 30-40k, so I imagine that with so many ports coming out in that time period Switch will naturally have some impressive sales figures just based on having a very good baseline and having so many ports (quantity can sometimes create a sales boost similar to popularity). Regardless, it's still arguable since DKCTF and Hyrule Warriors are so relatively niche ...