If the relationship with the pastor is important then it would make sense to approach him privately or write him a letter about the issues. Perhaps he will agree and address them at the meeting or in another way.
If you raise the matters is a public meeting, listing these things the pastor allows as abuses, the pastor is likely to feel humiliated and your relationship with him damaged.
It seems to me that the number of Extraordinary Ministers is the pastor’s call. It is not a liturgical abuse if he honestly thinks that is how many he needs. So I would not raise this, at least until progress has been made on the other issues.
Some documentation on the other issues:
FLAGON
2004 Instruction Redemptionis Sacramentum:
“[106.] However, the pouring of the Blood of Christ after the consecration from one vessel to another is completely to be avoided, lest anything should happen that would be to the detriment of so great a mystery. Never to be used for containing the Blood of the Lord are
flagons, bowls, or other vessels that are not fully in accord with the established norms.”
SIGN OF PEACE
From the 2002 General Instruction of the Roman Missal (GIRM) approved for the USA, which can be accessed from
romanrite.com/girm.html :
“154. … The priest may give the sign of peace to the ministers but always remains within the sanctuary, so as not to disturb the celebration. In the dioceses of the United States of America, for a good reason, on special occasions (for example, in the case of a funeral, a wedding, or when civic leaders are present) the priest may offer the sign of peace to a few of the faithful near the sanctuary.”
Also n. 294 may be helpful on this.
KNEELING FOR CONSECRATION
2002 GIRM
“43. The faithful should … In the dioceses of the United States of America, they should kneel beginning after the singing or recitation of the Sanctus until after the Amen of the Eucharistic Prayer, except when prevented on occasion by reasons of health, lack of space, the large number of people present, or some other good reason. Those who do not kneel ought to make a profound bow when the priest genuflects after the consecration. …”.
If in England or Wales, their 2002 GIRM has:
“43. … But they should kneel at the consecration, except when prevented on occasion by reasons of health, lack of space, the large number of people present, or some other good reason. Those who do not kneel ought to make a profound bow when the priest genuflects after the consecration.”
Sometimes questions can be more diplomatic, for example, “Has our bishop given any directions about the posture of the people during the Eucharistic Prayer?”