Well, they had full support at Arista to make them break into the US market and, when it clicked, they absolutely ruled Pop radio for more than a whole year; up until "Girls Like You" made Maroon 5 surpass them, they were still the group with most weeks at #1 on the Top 40 Mainstream chart (and their US chart activity barely lasted four years, let's be real). That really speaks to their supremacy in 1994, especially when you consider they placed not one, not two, but three (!) hits on Top 10 of the year-end charts. This is something that is hard to do these days, when songs are able to last forever in the charts, so imagine being able to do that back then. The album was such a behemoth that it made them look like a fad when it was time for their second offering. The Bridge was still quite successful, but in a much smaller scale. When they weren't the shiny new thing anymore, the label tried for a while, but then just pushed them into AC fodder territory. All in all, I would say it was a lightning in a bottle moment: perfect timing for a new pop act, and they knew how to blend trends while also presenting something new to the table, and all the support of their label to make them happen, whatever it took (they reshaped their whole album and public image, ffs).