Just take spoiler info with a grain of salt for now. Not saying it's fake, but we don't know the circumstances that kept them from entering Wano atm. It could be explained in 2 sentences during the chapter.
I also find that text spoilers can be somewhat inaccurate at first. Remember the whole Kanjuro finding Hiyori vs. Getting lost in Onigashima? Very legitimate spoilers bounced between both, and even when it was Kanjuro getting lost at Onigashima, he had a very good explanation for why he was lost.
Things like this make me believe BMP could be at the top of the waterfall already and or that they waited for a response from BM/Kaido for x reason (not to start a war between both crews). I just think it'll always end up better than it sounds once we see it