The real issue with blobbing is the underperformance of some anti blobbing assets. What annoys me the most is the lack of survivability for all MGs but the Maxim. Seeing BAR, Bren, MG42 blobs walking head on into the MG arc and sniping crew-models while another model is trying to recrew the gun (again and again so that the MG can't fire a single salvo) is bullshit. If that could be fixed it would be a start.
Also some anti blobbing assets are underperforming: Namely the MG34 and Ostwind.
Most allied MGs hardly pin and suppression still requires loads of micro from the Maxium and .50 for pins.
MG42 on the other hand is a 2-3 burst = pin with first volley being a suppress.
MG34 is similar to mg42 in its suppression profile if I'm not mistaken.
I agree with your point that running up to crew members and just out right overwhelming a supposed inf counter seems.... counter intuitive.