大般涅槃經義記 4.202

4.202

第四句中，「雖復無味，於苦千倍」明勝小乘，「何以」下釋。

In the fourth clause, "Although it is tasteless, it is a thousand times better than bitter [herbs]" clarifies its superiority over the Hīnayāna. From "Why?" onward is the explanation.