It's not the only error he made in the video either. I'll just copypasta the long-ass comment I wrote on the video. Bold is his statement, italics are my response.
Roger mentions that because both games (FF7R and SSBU) were in development at the same time, he speculates Square Enix decided to hold back on FF7 content to give new renders and such to promote the remake.
"I recall hearing somewhere that the reason there's not much FF music was due to licensing for FF7's music is actually has to go through Uematsu himself and has a hefty price tag attached to it. Same thing with Spirits - Normura's original art in the archives has a big price too. That's why Cloud is one of the few characters who uses his Ultimate renders instead."
Roger mentions Sephiroth could be done as a "Chrom-style echo fighter."
Also, it genuinely baffles me that people still don't understand how echo fighters work. To work, they must share the same skeleton, so height, body proportions, and even weapon shape affect how it works. Sephiroth's height, proportions, and weapons are far too different from Cloud's to be an echo fighter. It's the same reason Crow couldn't be Joker's echo. In addition, giving Sephiroth moves he doesn't have, like the ability to charge limits, and his fighting style, and even taking his flight away would be a huge disservice to the character. It's all original fighter or not at all in DLC; they have literally said this before. Cloud's a more rough and tumble brute strength fighter, whereas Sephiroth is far more dexterous and nimble. And sure, Chrom got ONE move that's different - but it's still copy-pasted from another fighter.
Roger mentions he thinks we'll get Barret and Tifa Mii Fighter costumes for Brawler and Gunner solely to promote the remake and suggests each one will come with a new FF7R song.
I could see Barret, Aerith, and Tifa costumes at the very least, but I doubt they'd come with music and if they did it'd probably be only one song, with all three sold together.
Roger mentions that part of Square Enix's restrictions on Cloud were that he could not appear in the World of Light opening cutscene, simply because he does not appear.
Also, do note that there were plenty of characters who weren't in the WoL cutscene - Roy and Chrom, Luigi, Ryu and Ken, Richter, Peach, Daisy, Ice Climbers, Jigglypuff, Dr. Mario, Pichu, Wolf, Wario, Dark Samus, Ness, Lucas, Sheik, Lucina, Young Link, Ganondorf, Ike, Mr. Game & Watch, Meta Knight, Olimar, R.O.B., Robin, Isabelle, Bowser Jr., Little Mac, Pac-Man, Corrin, Ridley, and Incineroar do not make appearances at all. All your "evidence" is circumstantial at best.
Miscellaneous.
I really hope you're right, but you're way off the mark if you're assuming we're getting extra. I mean, P5 Scramble just came out and you don't see them rushing to promote that."