4T-SEQ-3A never happened in 80s. First 4T-2T combos are from later 90s.Loop combinations don’t injure people any more than toe combinations. Right now the new trend is 4T+3A+SEQ. this is more likely to injure people than toe or loop.
It’s not a new element, it has been around since 1980’s.
But if you're talking about 3X-3Lo combo, it's also not so old for ladies.