I'm so sick of the discussion about 'moderate' rebels. During 5 years of war people did not rest to condemn all insurgents as terrorists, and now, that the moderate rebels are weaker in numbers than ever, this is taken as proof for their non-existence ever. Still, there are dozens of different factions within the Free Syrian Army, not all of them are Salafists.
Unless you do not drop your rose colored glasses, I won't be able to discuss things with you on eye level.
Personally, I have no doubts in the Syrian offensive along the M42 towards Raqqa, but as ISIS rarely confirms territorial losses, this is still unconfirmed, though published via 'South Front' and 'Syrian.Military.Capabilities'. The problem with both sources is, that they're propaganda channels of the syrian regime. They're good if you need confirmation about developments, but they're no indepent source of news.
Or would you trust the stories published on a site called Dukat's.Dick.Capabilities?
Nevertheless the 'moderate' Rebels are actually no faction you can expect to be a part of future Syria. They had their climax. In the near future, there will be only 3 faction in Syria: Kurds, Assads Regime and the Islamic State. The Free Syrian Army disposed itself by thir action in the past: