It is possible that the Bayonetta team allocated less resources for PS3 or were less proficient with PS3-programming, if the result is worse. But if it is released at the same time and developed by the same team, it means ideas and know-how flow in that team, even as it covers multiple platforms.

And for BOTW: even if we assume it is somewhat ported, why the assumption that the main platform was WiiU? Because it started there? Development might have a long time since moved to the Switch-prototypes. Which sounds reasonable, as only on Switch BOTW really runs smooth, on WiiU it often fails to reach the frame-rate-goal. Which for me seems to point that while developing the final assets they tested it first on Switch.

I might ask: is The Last Guardian a PS3-port? Because it started there?

Sure, I admit that the development starting on a previous platform might hold back a game. But that is basically true for all early games on a platform. Over time teams learn to master the platform more and early games might have worked with incomplete specifications. So I expect BOTW as an early game to not fully get the most out of Switch. We might see games utilizing the system better in the future.

I never said anything about most of that.  I only pointed out a truth.

In fact, I don't understand why people act as if "port" is intrinsically a negative in the first place.  A port can be better, worse, or equal.  It's simply a technical description.

I don't care if a game is given that label or not.

Sure why not, another dip for the 3DS story plus being the Nintendo Warriors game with the decent roster.

Adventure Mode will be easier for me being able to do it portable, so another nice bonus.

I care, because I'm a programmer. Porting means taking a completed software and adapt it to a new platform. An unreleased game isn't completed.

And here in the gaming sales context this distinction is also important. An port of an old game usually sells less than the original release. A multiplat-release has not the same restriction (although it may perform better on some platforms and worse on others, but a port of an already released game always gets a sales-penalty from the start). So let it seem as if this labeling is unimportant is wrong. In the context of these forums - gaming sales - the distinction is indeed very important.

It's not wrong.  The sales penalty you described is because of a later release date, not the act of porting itself.

Bayonetta on PS3 is a port of the 360 version developed by Platinum but it released at the same time and was the better selling version.