Yeah, no.
First of all, you are forgetting things. Game updates and patches have ballooned the last several years, and if BoTW is any indication then it would not surprise me if we see a lot more season passes from Nintendo titles, some that will require patches that will eat up the storage in the Switch in no time. Not to mention system patches and game saves, which will slowly chip away at the Switch's internal memory. And hell, who says there isn't going to be installs? Just because a title uses flash memory does not mean there will not be installs to the system, especially if 3rd parties start to develop more titles for it. 32GB was fine several years ago, but for a "premium" product like the switch, it does not cut it. So far, everything launching on Switch has been relatively low-power for the most part and does not require a lot in the way of storage, but come fall there will be a lot more 3rd party titles coming out. We simply do not know, and Nintendo has been rather hush-hush about a LOT of things with the Switch. Yes, many times installs are because of the disc drive speed for these consoles being rather lackluster, but there is nothing that I have seen that tells me that Switch will not have installs on certain titles.
Second, it is NOT apples and oranges. The excuse of the Switch being a "portable device" does not change the fact that there will be third party games on the system that will require extra features. Third party titles that are direct ports of console versions that many times have been rather big data hogs. It was fine with the 3DS because a lot of the titles and updates were relatively small, and 3DS games had much lower texture sizes and the updates for most titles were relatively small. The Switch, whether you call it a portable device or a home console is going to run more demanding titles that require more demanding storage options. These are not iOS or Android games that can get by on a small amount of storage.
To be fair on the switch, I do think the storage setup is far better then the Vita and allowing the use of both SD cards and USB-C cords for power is far better then a proprietary option. As a console, however, the options for storage are a issue. I don't think it is unreasonable to ask for either a base 64GB version or at least options for higher storage capacities right out of the box without having to purchase a SD card. I am not going to fault Nintendo for SD card technology still taking awhile to catch up (and the fact that it offers up to 2TB will be a good thing in the future). Nintendo needs to offer options with future versions and not stick to the base 32GB version like they did with the Wii U (or at the very least offer external HDD support for dock mode).
Storage will be a issue with the Switch in the long run.