Hi Roger,
Yes, you've said correctly. Since Major 0.618 level that was also Agreement could not hold market, It is even more so with minor 0.786 or 0.886. Besides, all trends are bearish now. Without directional patterns, existing of just 0.786 support is insufficient to enter long.
Your scenario is possible, but I will think about long entry only after upward move will be supported by trend shifting.
Another thought is trading of harmonic patterns is different from trend and direction trading. For instance, "222" that, as you think, could start from 0.786 level will be treated as work well, even if it will show just 0.382 retracement from recent swing down. While from trend trading point of view - this is nice rally to sell. In combinations of these two approaches there are ways of same price action that treated differently.