Putting this as a bug, could also fit as a request if it's simply functionality that hasn't been added yet. Could also be an issue with the skill tree rather
For example, I have a journey with one objective, flexible ankles. One of the exercises I had in it was 'Wall push calf raise'. I clicked the suggestion button and it suggested swapping for 'Wall triceps pushup'.
Nothing against some wall tricep pushups, but it's not a progression of wall push calf raises in any calf related sense, and has it's profile is 100% upper body strength, no ankle flexibility in sight.