Not really, titles have very deep holes, taking them as absolute has always been a problem but people need clarity about everything and can´t accept that maybe not everything is revealed yet. As example, i have not once seen anybody predict that CoC could be used in the manner it was introduced in this arc, people always just put it aside as fodder control, now suddenly it can elevate high tiers into top tier category. Trying to pretend that everything is clear and done with is premature, especially considering Oda likes to introduce stuff successively over the years.
We know for example why WB was called the strongest man, not because of a specific accomplishment, beating the previous WSM or whatever, but because of the monstrous way he crushed down his opponents with the Gura and his way of combat, and he was called that while Roger was in his prime, yet they were dead equal (vivre cards), putting aside Garp existing as well, and that it seems like that Rocks, BM, WB and so forth lost against Roger+Garp. Also putting aside the fact that the narrator, usually a viewpoint that´s supposed to be omniscient called WB WSM when he was already sick and old and by his own admission probably not the strongest in any way.
We know why Kaidou is called WSC, his durability (offensively there are more impressive characters, whether it´s WB/BB, Akainu, Mihawk (just extrapolating from Zoro and what he can do AP-wise without being a full fledged top tier)).
Yet people pretend that WSS has to be the exception.
Of course there are very good arguments that he is what the title says, vivre card stating in name and actuality, him having a black blade while Shanks, Roger, Rayleigh, Fuji and so forth don´t, Shanks having lost an arm.
But considering the other two titles, the possibility of Oda throwing a curve ball are not slim, especially with how mysterious Shanks´ character is, plus they could easily be another case of WB and Roger, actually equal while one possessing one title (WSM(WSS) while the other gained something at least equally notorious (PK/Yonkou).