Gramsci cautions against workerism especially catering the reactionary in order to gain appeal; here he is criticising the Socialist Party of his time:

“The Socialist Party claims to be the champion of Marxist doctrines. One would therefore expect the Party to possess in these doctrines, a compass to steer it through the confusion of events. One would expect it to have that capacity for historical foresight that characterizes the intelligent followers of Marxist dialect. One would expect it to possess a general plan of action, based on this historical foresight and to be in a position to issue clear and precise orders to the working class, engaged in its struggle. But instead, the Socialist Party, the champion of Marxism in Italy — just like the Partito Popolare, the party which represents the most backward classes in the Italian population — is exposed to all the pressures of the masses and it shifts and alters its position following the shifts and alterations of the masses. This Socialist Party, which proclaims itself to be the guide and educator of the masses, is in fact nothing more than a wretched clerk, recording the way in which the masses are operating of their own accord. This poor Socialist Party, which proclaims itself to be at the head of the working class, is nothing more than the baggage-train of the proletarian army.”

TLDR: the importance of leadership and vanguardism (especially as opposed to tailism).

Via Roderic Day: https://redsails.org/the-communist-party/

It appears this ACP is led by pat-socs and tailists masking class lines accomodating reaction with their blend of producerism ultimately bowing down to capital (they clearly lean towards a false distinction between finance and industrial capital).

/edits for clarity