Umm, no they're not. Stupid shoes to suit clipless pedals are. SPD-L are only good when you're on the bike. SPD are only good until the soles of the shoes wear a little bit. Neither are good if you're spending any length of time off the bike.
In the real world, clips and straps offer a minor loss of efficiency .... though few riders have the skills to exploit the difference. The big issue with straps and clips is the lack of decent shoes ... because the bike industry wants us to believe you need a clipless system which sells pedals as well as shoes and clips while stopping them from having too produce shoes that don't use clips. Those stiff soles on modern shoes are there to support the foot on clips and are not required to support the foot on a decent pedal.