Beyond what people already said, I think his view is also very specific in the videogame market (in Japan in particular) - we're talking a fairly sizeable company, with a good amount of employees and enough credentials to actually publish games on PS5.
From the same thread IMO this is a plus but not a must though
If you're a brand new Japanese developer, straight outta uni, alone or with a very small group with no money or close to it, there's no fucking way that you'll target the bloody PS5.
You will obviously make PC games, like anyone starting there has done since the 80s. And once a bit more sure of yourself and your team, likely try for the Switch, where it is quite a bit easier to get games out, and a lot less expensive.
Some indies would try mobile gaming, but that's not realistic.
On the other hand, companies recruiting newbies in the industry, they are mobile focused. Not AAA wannabes targeting a global audience on consoles, that's just not how it works - that's horrible advice to tell brand new Japanese developers to start on the newest consoles, because there's no way that's where they'll find success without a lot of nepotism.
The asset farms have not been in Japan for a long time, salaries are much too high. Also a reason why so many Western games look light years ahead, they'll exploit foreign cheap labour for all the boring grunt work that traditionally ended on the platter of fresh devs.