Based on my personal opinion and experience it is proper to analyse this 1 min strategy with 1 hour, 15 min and 5 min chart I.e when all the three charts properly aligned together forming a trend then you can find a convenient entry spot on 1 min chart, I think trading 1 min chart alone without reference to the higher chart is not a good strategy considering the fact that cryptocurrencies are very volatile.
I got nothing to add on that I believe you made a valid point. I have started in 1min timeframe because the nature of cryptocoins and its volatility. The higher the timeframe is the more stable the entries suppose to be in theory. However, trend is my friend and thats why I like SMA because I like the ride the market waves!