As David said, as long as you get the results you want, it doesn't matter how you do it.
I get too confused to do it all from the same side with a crosscut. If any fleam at all is being added to a rip saw it gets flipped for the filing.
It did throw me the first time filing a rip saw from one side. The filing burrs were all on one side and made the saw wonder more than expected. A little work with a stone took that down.
jtk
"A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty."
- Sir Winston Churchill (1874-1965)