IMHO, it's still a matter of preference.
If you test it yourself i.e make the lace hb with glued rosettes AND put 'em in the washing machine. Does it come off or no? Experiment with glued and sewed.
I.e Some bowmakers will state in their description that their bows are washeable. Why? Because they tested it themselves and they stand by their statement.
Just make sure you're using a darn good glue...
or just sew it.