I'm not sure you can generalise about any one persons style. Helio's style has influenced people as diverse as Rickson, Royce, Relson, Rorion and Royler (to name a few) - it is hardly as if those 5 men have markedly similar styles or have not also been influenced by other sources as well.
Equally, whilst many of Carlson's team have a reputation for a more physical approach to BJJ, he also had some very technically gifted players such as de la riva or peixotinho (who beat royler and rillion respectively).
This isn't kung fu, there are no schools with a common style across all members, eschewing external influences.
Take a team like GB with people as diverse as Roger, feitosa, Paixao, Braulio, Gordo & PDP - they cannot be said to have one overarching style.
Look at the direct relationship of gurgel and marcelinho, their competition styles are nothing alike - you cannot say there is a common "Alliance style" (except winning in style

)
Look at RGA - Nic G, Oli G and Luciano all have different styles, none of them with much in common to Roger's own game
I don't really buy that, not that it is necessarily a mark of how influential or great someone is, but jacare/gurgel (remembering terere was specifically instrumental in the development of galvao, morais and cobrinha); carlinhos and royler all have a greater claim to have produced more sports bjj champs and in an era when there is much greater depth in competition than comparatively in the 80's and early 90's.
Bear in mind also Helio produced the greatest BJJ player to date (Rickson) and the best p4p gi and no gi player of the last 2 decades (Royler) othe best bjj marketing guy eva (Rorion), oh and that Royce guy.
i don't really buy that either - putting aside BTT & ATT, which were not part of his fold in any case, Carlson's biggest extant team now is BJJ Revolution in the US (and very successful they are too), but they are not more prolific than the gracie humaita team (which inclues 2 of the 3 most accomplished players of the last decade and the most successful teacher/student gold medal haul at major competitions ever - royler/saulo/xande).